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| Vanomark,Giuliana Mairana Morais de Sousa; Espínola Sobrinho,José; Bezerra,José Renato Cortez; Santos,Carlos Antonio Costa dos; Azevedo,Pedro Vieira de; Silva,Saulo Tasso Araújo da; Bezerra,Bergson Guedes. |
| ABSTRACT The Mossoró-Assu-Baraúna district, Rio Grande do Norte State (RN), is recognized by the intense production of horticulture, mainly muskmelon for export. However, this region is often devastated by intense droughts. Thus, the muskmelon production is predominantly under irrigated condition and, due to constant threat of water resources collapse on the region, a rigorous irrigation water management in the region is needed. The main objective of this article was to analyze the seasonal pattern of energy balance partitioning and evapotranspiration on irrigated muskmelon crop on the region around Mossoró-RN. The study was carried out in two areas of commercial production of muskmelons in the Mossoró-Assu-Barúna district, during two growth seasons from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mossoró-Assu-Baraúna district; Net radiation; Latent and sensible heat fluxes; Soil heat flux. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000100168 |
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| Silva,Bernardo B. da; Braga,Alexandra C.; Braga,Célia C.; Oliveira,Leidjane M. M. de; Montenegro,Suzana M. G. L.; Barbosa Junior,Bernardo. |
| ABSTRACT The surface albedo plays an important role in the exchanges of energy and mass in the planetary boundary layer. Therefore, changes in albedo affect the balance of radiation and energy at the surface, which can be detected with its monitoring. Albedo determination has been performed through various sensors, but there is not yet any publication dealing with albedo calculation procedures using OLI (Operational Land Imager) - Landsat 8 images. The objective of the study is to present the procedures for computing the albedo with OLI images and map it in irrigated areas of the São Gonçalo Irrigated District, PB, Brazil. Images of the year 2013, path 215 and row 65, were selected. The data necessary for calculating the albedo were extracted from each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Radiance; Spectral reflectance; Atmospheric transmittance; Net radiation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000100003 |
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| Rolim,Glauco de Souza; Escobedo,João Francisco; Oliveira,Amauri Pereira. |
| The quantification of the available energy in the environment is important because it determines photosynthesis, evapotranspiration and, therefore, the final yield of crops. Instruments for measuring the energy balance are costly and indirect estimation alternatives are desirable. This study assessed the Deardorff's model performance during a cycle of a sugarcane crop in Piracicaba, State of São Paulo, Brazil, in comparison to the aerodynamic method. This mechanistic model simulates the energy fluxes (sensible, latent heat and net radiation) at three levels (atmosphere, canopy and soil) using only air temperature, relative humidity and wind speed measured at a reference level above the canopy, crop leaf area index, and some pre-calibrated parameters... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy budget; Net radiation; Latent heat flux; Sensible heat flux; Microclimate. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000400001 |
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